18021024411 has 32 divisors (see below), whose sum is σ = 27279248640. Its totient is φ = 10490373504.

The previous prime is 18021024409. The next prime is 18021024419. The reversal of 18021024411 is 11442012081.

It is not a de Polignac number, because 18021024411 - 2¹ = 18021024409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18021024419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 483696 + ... + 519618.

It is an arithmetic number, because the mean of its divisors is an integer number (852476520).

Almost surely, 2^18021024411 is an apocalyptic number.

18021024411 is a deficient number, since it is larger than the sum of its proper divisors (9258224229).

18021024411 is a wasteful number, since it uses less digits than its factorization.

18021024411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36635.

The product of its (nonzero) digits is 512, while the sum is 24.

Adding to 18021024411 its reverse (11442012081), we get a palindrome (29463036492).

The spelling of 18021024411 in words is "eighteen billion, twenty-one million, twenty-four thousand, four hundred eleven".